Nautilus crashes when addressbook contains contacts without names (e.g. Google)

Google Addressbook allows contacts contains only e-mails (w/o any name)
The code in ubuntuone picker does not handle such contacts and nautilus crashes:

#0 IA__g_str_hash (v=0x0) at /build/buildd/glib2.0-2.24.0/glib/gstring.c:134
#1 0x00b724f8 in g_hash_table_lookup_node (hash_table=0x80b6c90, key=0x0) at /build/buildd/glib2.0-2.24.0/glib/ghash.c:309
#2 IA__g_hash_table_lookup (hash_table=0x80b6c90, key=0x0) at /build/buildd/glib2.0-2.24.0/glib/ghash.c:898
#3 0x0804b8c9 in add_contacts (cv=<value optimized out>, contacts=0x8210f60, selection_hash=<value optimized out>) at contacts-view.c:325
#4 0x0804c1bf in book_opened_cb (book=0x809ea90, status=E_BOOK_ERROR_OK, user_data=0x80e2000) at contacts-view.c:374
#5 0x007a7753 in emit_async_open_response (data=0x80fb598) at e-book.c:2814
#6 0x00b7f661 in g_idle_dispatch (source=0xb7401190, callback=0, user_data=0x80fb598) at /build/buildd/glib2.0-2.24.0/glib/gmain.c:4065
#7 0x00b815e5 in g_main_dispatch (context=0x807d738) at /build/buildd/glib2.0-2.24.0/glib/gmain.c:1960
#8 IA__g_main_context_dispatch (context=0x807d738) at /build/buildd/glib2.0-2.24.0/glib/gmain.c:2513
#9 0x00b852d8 in g_main_context_iterate (context=0x807d738, block=<value optimized out>, dispatch=1, self=0x8054ba0)
    at /build/buildd/glib2.0-2.24.0/glib/gmain.c:2591
#10 0x00b85817 in IA__g_main_loop_run (loop=0x80ffea8) at /build/buildd/glib2.0-2.24.0/glib/gmain.c:2799
#11 0x0026e299 in IA__gtk_main () at /build/buildd/gtk+2.0-2.20.0/gtk/gtkmain.c:1219
#12 0x0804b232 in main (argc=1, argv=0xbffff2f4) at test-contacts-picker.c:95